Transport Technologies. – 2020. – Vol. 1, No. 2

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/55310

Журнал створено у 2020 році у Національному університеті «Львівська політехніка». Періодичність видання двічі на рік. Випуск номерів журналу здійснюється англійською мовою

Transport Technologies. – Lviv : Lviv Politechnic Publishing House, 2020. – Volume 1, number 2. – 80 p. : il.

Зміст (том 1, № 2)


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Content (Vol. 1, No 2)


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    Vibration impact and noise protection devices with DVA for wheeled vehicles
    (Видавництво Львівської політехніки, 2020-09-14) Diveev, Bogdan; Lviv Polytechnic National University
    The article investigates vibration and noise protection devices for wheeled vehicles using dynamic vibration absorbers (DVA). Algorithms for modeling their dynamic characteristics based on adaptive calculation schemes are presented. A non-linear suspension with DVA and a noise-absorbing partition is considered, which is due to the introduction of a layered composite thinwalled structure with an intermediate damping layer with high damping properties and a DVA system, which provides better vibration and noise absorption. The problems of shock propagation during the overturn of the bus to passengers are also considered. The influence of the parameters of the shock absorber on the dynamic properties of the bus is investigated. The optimal parameters of the shock absorber are determined.
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    Influence of public transport ergonomic features on passenger's functional state
    (Видавництво Львівської політехніки, 2020-09-14) Afonin, Maksym; Lviv Polytechnic National University
    The article means an analysis of the passenger transport services quality issue. Researches of public transport routes ergonomic features and their influence on a passenger functional condition are provided. The analysis of such indicators as cabin occupancy rate, noise level, vibration, and acceleration was carried out. Mathematical dependences of the passenger functional condition change considering vehicles ergonomic features were constructed. Threshold values of passenger compartment microclimate, providing the stress index normative values were determined. The most valuable result of the study is a comparative assessment of each type of public transport in terms of comfort and obtaining threshold values of noise, vibration, and acceleration which are acceptable for the normal passenger’s functional condition.